期刊
CHEMICAL COMMUNICATIONS
卷 56, 期 94, 页码 14813-14816出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc06568d
关键词
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To reach the promising potential of circularly polarized luminescence (CPL) emitters, high CPL brightness must be achieved. We describe the synthesis of analogues of the C-3-symmetrical Shibasaki's lanthanide complexes (Sm, Tb, Dy) supported by enantiopure 5,5 ',6,6 ',7,7 ',8,8 '-octahydro-1,1 '-bi-2-naphthol (H-8-Binol). The complexes exhibit visible luminescence in solution with exceptionally high quantum yields for Sm (4%) and Dy (17%), and strong circularly polarized luminescence for Sm, Tb, and Dy (|g(lum)| up to 0.44, 0.32, 0.33, respectively). Altogether, these complexes possess amongst the strongest CPL brightness reported to date in lanthanide molecular complexes (up to 782 M-1 cm(-1) for Tb).
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